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- W2372436338 abstract "The conventional acoustic logging tools with monopole source cannot be used to evaluate the azimuth properties in the borehole formation.The multi-pole acoustic logging tools have a certain limited ability for the azimuth measurement,such as low resolution of azimuth measurement and multi-solution in the inversion of formation information.An acoustic phased arc array transmitter with azimuth radiation was designed.The acoustic field generated by the acoustic phased arc array transmitter in the borehole formation was simulated using the 3D finite difference method.The analysis on the numerical simulation results of the azimuth characteristics of the acoustic field generated by the transmitter showed that the acoustic energy generated by the phased arc array transmitter could radiate onto the sidewall of oil well in a certain azimuth range.The acoustic energy could be transmitted into the borehole formation propagated in a certain azimuth range,too.The azimuth lobe width of the acoustic beams became wider as the axial offset increased.The acoustic phased arc array transmitter can be used in azimuth acoustic reflection logging and evaluate the azimuth variation of acoustic properties in the borehole formation and also be useful for complex reservoir recognition and evaluation." @default.
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- W2372436338 date "2010-01-01" @default.
- W2372436338 modified "2023-09-22" @default.
- W2372436338 title "Characteristics of acoustic field generated by acoustic phased arc array transmitter in the borehole formation" @default.
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